Psittacus lunulatus Scopoli, Del. Flor. et Faun. Insubr. (1786),
86.
Bolbopsittacus lunulatus Salvadori, Cat. Birds Brit. Mus. (1891),
20, 504; Sharpe, Hand-List (1900), 2, 34; McGregor and Worcester,
Hand-List (1906), 49.
Bo-bó-toc, gua-ya-bé-ro, Luzon.
Luzon (Cuming, Möllendorff, Steere, Meyer, Everett, Steere Exp.,
Whitehead, McGregor).
Male.--General color green, lighter below; lores, orbit, cheeks, a
narrow line on forehead, and a narrow collar on hind neck pale blue;
lower back, rump, and upper tail-coverts light greenish yellow;
the longest coverts clear green; primaries, primary-coverts, and
alula blue on outer webs, inner webs black; ends of primaries more or
less green; on under side of wing a pale yellowish band across inner
webs of secondaries and shorter primaries; rectrices green above,
blue below. Iris brown, cere black; bill black, with base white;
legs dull green; nails horn-brown. In the female all of the lower
mandible is dirty white. Three males and three females from Bataan
Province average, wing, 98; tail, 36; culmen from cere, 18; tarsus, 13.
Female.--Differs from the male in having the lower parts lighter green;
blue of head confined to feathers of lower cheeks overhanging chin
on each side; a narrow ring of light green around eye; collar on
hind neck yellow, each feather with two narrow crescentic lines of
blackish green; lower back and rump green, with blackish crescentic
marks. Same size as the male.